Car-roof construction.



J. L. MOHUN.

GAR ROOF CONSTRUCTION.

APPLICATION FILED DB0. 21, 1911.

Patented Nov. 4, 1913.

3 SHEETS-SHEET l.

om wom Patented' Nov. 4, 1 913.

3 SHEETS-SHEET 2.

. J. L. MOHUN.

CAR ROOF CONSTRUCTION.

APPLICATION FILED DEG. 21, 1911.

yPatented Nv. 4, 1913.

3 SHEETS-SHEET 3.

l- Qdimmm mm m mm /a, 'WWU-@fb Y JOHN I. MOHUN', OF BROOKLYN, NEW YORK.

CAB-ROOF CONSTRUCTION.

Specicaton of Letters Patent.

Patented Nov. 4, 1era.

Application led Deceniber 21, 1 911. Serial No. 667,071.

To all whom t may concern.'

Be it known that I, JOHNL. MOHUN, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented new and useful Improvements in Car-Roof Construction, of which the following is a specification.

This invention relates to car roof construction, some of the features being particularly applicable to roofs for refrigerator Cars, while other features may also be employed in connection with roofs for other types of freight cars.

One of the objects of my present invention is to provide a wooden carline having a metal trough mounted thereon, which may also serve as a metal carline for supporting the metal roofing sheets and receive the drainage therefrom, the side edges of said roof sheets being adapted to draln into the metal troughs or carlines. Y

Another object is to provide an improved rain proof hatch, or ice door construction in the refrigerator car roof.

Another `object is to provide an improved longitudinal member, such as the ridge pole or purlin, built up in sections connected together over the drain troughs or carlines; and still another object is to provide the metal ridge pole with a turned down daring end, having side ianges for bolts for fastening to the end plate, and extending over the end plate and out upon the top of the facia board. y A

In the accompanying drawings: Figure 1 is a transverse section of a portion of a car roof embodying certain features of my improvement; Fig. 2, a transverse section of a carline and running board saddle, taken on the line 2-2 of Fig. 1; Fig. 3, a similar section of a carline, taken on the line 3-8 of Fig. 1; Fig. 4, a transverse section of a portion of the roof, taken through'one of the hatches; Fig. 5, a plan. of the hatch with a corner of the door broken away; Fig. 6, a plan showing a portion of my improved sectional ridge pole; Fig. 7, a side elevation of the same; Fig. 8, an end view of one of the ridge pole sections; Fig. 9, an end view of the ridge pole; and, Fig. 10, a transverse section of the ridge pole on a larger scale,

taken on the line 10--10 of Fig. 7.

Referring to Figs. 1 to 3, the supporting frame-work of the car roof may comprise the wooden carlines, 20, having the metal troughs or U shaped carlines, 20a, mounted or embedded therein with the upper flange substantially flush with the top of the wooden carline and the roofing boards, 30, which may be located between the carlines and supported on strips, 20", fastened to the sides of the wooden carlines below the top surface thereof. The metal roof sheets, 23, may then be laid upon the roofing boards and have the side edges of the sheets turned up and over to drain into the troughs of the carlines, the turned over edges and carlines being covered by carline caps, 22, which are held at their lower ends by the carline hoods, 60, bolted to thecarlines and side plate. The upper edges ofthe roof sheets are also turned over to drain into the trough of the U shaped Mmetal ridge pole, 25, having flaring flanges, 25a, bearing against the under side of the roof sheets, and supported upon the carlines. A ridge cap, 33, covers the upper ends of the roofing sheets and the trough in the ridge pole.

The running board saddle, 40, for supporting the runnin boards, 41, is formed separate from and olted to a central web portion, 31, which extends down into the carline where it is fastened by bolts beneath the roofing boards, 30. In the construction of refrigerator cars, it is custo-mary to put in the carlines with the double ceilings, 44, and felt linings, 45, and the roofing boards, 30, before the outside metal roof is applied, and with my improved saddle formed in two parts, as shown, the web portion, 31, may be bolted in position before the roofing boards are put on, then after the roofing boards are applied, the metal roofing sheets, carline caps and ridge cap may be placed in position, and the running board saddle, L10, then bolted to the web, 31thereby covering the ends of the lridge capv and the carline caps and holding the same in place.

As shown in the drawing, the wooden car.-

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with hatches in the roof, which are formed by means of hatch timbers, 50, carried by the carlines and roof members, as shown in Fig. 4, and projecting above the outside surface of the roof. When metal roof sheets are used and the same are bent up against and fastened to the hatch frame, the weaving motion of the car, which causes a twisting movement between the hatch frame and the roof, soon produces a cracking of the roof sheet at the bend, thereby causing a leak. According to one feature 'of my improvement, this is prevented by providing the roof sheets, 23, with turned up edges, 23a, about the sides of the hatch frame, 50, but detached therefrom, and having a clearance space between the same to allow for a free relative movement. In order to prevent the corners of the frame.

entrance of rain or snow into this clearance space, I provide a metal covering or hood, 51, fastened upon the top of the hatch frame, and having its outer edge bent down over the up-turned edges of the roof sheets, but at a slight distance therefrom, in order to provide the necessary exibility. This metal frame or hood is preferably divided into a number of straight angular bars corresponding to the number of sides of the hatch frame, and each provided with interlocking lugs, 52 at its ends, adapted to be pivotally fastened together by pins or rivets at the By means of this construction, the metal frame may automatically adjust itself to the movements of the hatch frame. The hatch door, 58, may then be mounted on hinges, 54, carried by the metal hood, 51, and .be secured by a clasp in the usual way.

For the purpose of facilitating the handling of the lon itudinal roof members such as the metal ri ge pole, 25, I prefer to construct the same in a series of sections, as shown, particularly in Figs. 6 to l0 of the drawings. Each of the intermediate sections is provided at its ends with flanges, 25h, bent outward at right angles and arranged to be riveted to the fianges of adj acent sections over the drain troughs of the carlines, 20a, an opening, 25e, being left between the abutting flanges at the bottom of the ridge pole for permitting the water to drain out into the trough of the carline. The outside end of the end section may also be provided withv wide lateral flanges, Q5, for bolting to the end plate, and a flaring lower flange, 25d, extending out over the end facia board. By means of this feature of my improvement, the metal ridge pole may be formed of pressed U shaped metal sections, and be more readily handled and shipped without danger of breaking, bending or otherwise injuring the same. While I have illustrated this feature as applied in connection with a refrigerator car roof, it

remesa will be evident that it may also be equally well applied to other forms of car roofs.

By means of my improved construction, including the metal drain troughs or carlines, 20a, mounted on and embedded in the wooden carlines, it will be seen that all of the metal roof parts are insulated from the space beneath the roof, while at the same time, an effectual drainage system is provided for preventing leakage.

Having now described my invention, what I claim is new, and desire to secure by Letters Patent, is

l. In a car roof, the combination of a wooden carline having a metal drain trough mounted thereon the wooden carline covering the sides of said trough, and metal roof sheets having their side edges adapted to drain into said trough.

2. In a car roof, the combination of wooden carlines having metal drain troughs or carlines mounted thereon, roofing boards supported by said carlines substantially flush with the top of the trough, and outside metal roof sheets having their side edges adapted to drain into said troughs.

3. In a ear roof, the combination of wooden carlines having met-al drain troughs or carlines embedded within the wooden carlines substantially flush with the top thereof, roofing boards supported by the wooden carlines also flush with the top thereof, and outside metal roofing sheets laid on said roofing boards and carlines, and having their side edges adapted to drain into said troughs.

4. In a car roof, the combination with carlines having drain troughs, of metal roof sheets having their lside edges adapted tov drain into said troughs, and a running board saddle formed in separate parts, one portion being fastened to the carlines and having a web extending up between the roof sheets longitudinally of the carline, and the other portion mounted on the web portion above the roof sheets.

5. In a car roof, the combination of wooden carlines having U shaped metal carlines embedded therein, roo-fing boards between said carlines, metal roofing sheets having their edges adapted to drain into said carlines, and a running board saddle formed in two parts, one being bolted longitudinally to the carlines and extending up between the roof sheets, and the other mounted on the first part above the roof sheets for supporting kthe running boards.

6. In a hatch for car roofs, the combination with roof members, and a hatch frame extending above the roof surface, of metal roofing sheets bent up around the hatch frame, and a metal covering fo-r the top of amuse and being formed in sections of angular bars having interlocking lugs connected together -at the corners of the hatch frame.

7. In a hatch for car roofs, the combination with the hatch frame extending above the roof surface, of an angular metal covering for said frame, formed in sections pivotally connected together at the corners of said hatch.

8. In a car roof, the combination with carlines having drain troughs, of a U shaped metal ridge pole supported thereon and formed in sections with end flanges connected together over the trough of the carlines.

'9. In a car roof, the combination with U Shaped metal carlines, of a U shaped metal ridge pole formed in sections With flanges riveted together over said carlines and having a drainopening at the bottom between the sections.

1 0. In a car roof, a U shaped metal ridge pole having lateral and bottom fianges at the end of the ridge extendin over the end plate and the facia board of t e car.

11. In a car roof, a U shaped metal ridge pole having top flanges for supporting metal roof sheets, and lateral and bottom anges at the end of the ridge extending over the end plate and end facia of the car. In testimony whereof I have hereunto set m hand. y

y Joint L. MoHUN., Witnesses W., II. Com, ,i C. L. WINBY. 

